AWS B4.0M

This standard covers the common tests for the mechanical testing ofwelds. They are defined andillustrated in five parts related to testing of groove welds, filletwelds, and stud welds. Thetests include: bend tests, tension tests, fracture toughness tests,soundness tests, shear tests,nick-break test, hardness tests, stud weld tests, and selectedweldability tests.

This document extensively uses American Society for Testing andMaterials (ASTM) Standard Methodsand specifies how to use these methods when testing weldments. Ittakes into consideration thevariations in properties that can occur between different regions(base metal, heat-affected zone,and weld metal) of a weldment.

Methods of hardness testing and mechanical property tests for basemetals are covered by ASTMstandards or the individual material specification. The joint testsfor brazements are covered inAWS C3.2, Standard Methods for Evaluating the Strength of BrazedJoints in Shear.

This Foreword applies to all five parts. Additional information on themechanical testing of weldedjoints may be obtained from the AWS Welding Handbook, Volume 1.

The values stated in SI Units and used throughout this document are tobe regarded as standard.Recommendation for style and usage of SI Units may be found in AWSA1.1, Metric Practice Guide forthe Welding Industry.

An expanded section on weldability testing is included in this editionof B4.0M. Selectedweldability test methods are described.

Safety Precautions. Safety precautions shall conform to the latestedition of ANSI 249.1, Safety inWelding, Cutting, and Allied Processes, published by the AmericanWelding Society.

Note: This standard may involve hazardous materials, operations, andequipment. The standard doesnot purport to address all of the safety problems associated with itsuse. It is the responsibilityof the user to establish appropriate safety and health practices. Theuser should determine theapplicability of any regulatory limitations prior to use.

Comments or inquiries on this standard are welcome. They should besent to the Secretary, AWS B4Committee on Mechanical Testing of Welds, American Welding Society,550 N.W. LeJeune Road, Miami,FL 33126.

Official interpretations of any of the technical requirements of thisstandard may be obtained bysending a request, in writing, to the Managing Director, TechnicalServices, American WeldingSociety, 550 N.W. LeJeune Road, Miami, FL 33126. A formal reply willbe issued after review by theappropriate personnel following established procedures.

Edition:

1

Published:

01/01/2000

ANSI:

ANSI Approved

Number of Pages:

115